Home / 28,066.44-38,731.66-15,491.19

Finding the Fourth Proportional to 28,066.44, 38,731.66 and 15,491.19

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Solution

The fourth proportional to 28,066.44, 38,731.66 and 15,491.19 is: 21,377.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.44 : 38,731.66 = 15,491.19 : x
  2. Step 2: Convert to fraction form
    28,066.44/38,731.66 = 15,491.19/x
  3. Step 3: Cross multiply
    28,066.44x = 38,731.66 × 15,491.19
  4. Step 4: Simplify right side
    28,066.44x = 599,999,465.35
  5. Step 5: Solve for x
    x = 599,999,465.35/28,066.44
  6. Step 6: Final answer
    x = 21,377.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.